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    Waterfront Lot Ready to Build Title is generated by Realmo AI

    1021 27Th Street Ocean, Marathon, FL 33050

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    Claim this Listing
    For Sale
    $679,000

    LAND - Marathon, FL

    Lot size:
    0.09 Acres
    Added:
    Jan 28, 2026
    Days on Market:
    114
    Last Refresh:
    May 22 at 6:06 pm

    Property Features for 1021 27Th Street Ocean

    General Information

    Property type
    Land
    Property subtype
    Other
    Zoning
    RM - Residential Medium
    Standard status
    Active
    APN
    00323050-000000
    Lot size
    0.09 Acres

    Taxes and HOA fees

    Tax Year
    2025
    Tax Description
    BK 4 LT 14 HARBOR ISLES PB4-98 KEY VACA OR304-194 OR910-770 OR1054-769 OR1054-770 OR1054-771 OR2010-1764 OR2480-239 OR3
    Tax Annual Amount
    3655

    Utilities

    Water front
    1

    We can help!

    Listing Contact
    Dan Cloud
    Dan Cloud

    Listing agent Dan Cloud License #3144777

    Listing office Water Vista Realty, Inc. 749 Oceana Drive, Key Largo, FL

    Listing date Jan 28, 2026

    MLS# 618347 Listing URL

    Copyright © 2026 Florida Keys Board of REALTORS®. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

    HighLights

    • Premium waterfront lot with building rights and deep‑water protected 50 ft dockage
    • Option to build immediately with included house plans or have the seller coordinate new construction of a 5‑bedroom, 5‑bathroom, 3,200 sq. ft. home with customizable finishes
    • Features a private pool, elevator, and rooftop observation deck with breathtaking views of Boot Key Harbor sunsets
    • Prime location in Marathon, Florida, offering easy access to shopping, dining, and social boating opportunities
    • No HOA fees and allows 7‑day rentals, providing income potential in Marathon's vacation rental market
    • Opportunity to customize interior and exterior finishes

    Overview

    This premium waterfront lot includes a building right and is ready to build. The property includes two sets of house plans. It features deep water protected 50 ft dockage and breathtaking views. Located in Marathon, Florida, the property allows 7-day rentals, offering flexibility to offset investment through vacation rentals. There are no HOA fees. The location provides easy access to shopping and dining options, and is minutes from both the Atlantic and Gulf, offering world-class fishing, snorkeling, diving, and boating adventures. Boot Key Harbor provides calm waters for social boating, complete with on-the-water dining and cocktails. The property is zoned RM - Residential Medium. Construction is scheduled to begin in 2026 on a planned 3,200 sq. ft. home with 5 bedrooms and 5 bathrooms, featuring a private pool, elevator, and a rooftop observation deck. The lot size is 0.09 acres.
    Property Profile Location Intelligence

    Current Use by Public Records

    Waterfront Land

    Suggested Use

    Real Estate Agency Law Firm Restaurant Spa & Massage Center Dental Office Hair Salon Nail Salon Building Supply Gym & Fitness Center Pharmacy

    Zoning and permitted uses should be independently verified with local authorities.

    Location Insight

    • Map
    • Local Demand
    City
    Marathon
    County
    Monroe
    State
    Florida
    Longitude
    -81.098411
    Latitude
    24.707046

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    FAQs

    What type of property is this?
    Waterfront Land - Premium waterfront lot with building rights and deep water dockage.
    Where is this waterfront land located?
    The property is located at 1021 27Th Street Ocean Marathon, FL.
    What is the asking price?
    The asking price for this property is $679,000.
    What are key features of this property?
    This property features: Premium waterfront lot with building rights and **deep‑water protected 50 ft dockage**; Option to build immediately with included house plans or have the seller coordinate new construction of a 5‑bedroom, 5‑bathroom, 3,200 sq. ft. home with customizable finishes; Features a **private pool, elevator, and rooftop observation deck** with breathtaking views of Boot Key Harbor sunsets
    (305) 396-7844
    We can help!
    Listing Contact
    Dan Cloud
    Dan Cloud
    Real Estate License ID: 3144777
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    Realmo Value Estimations

    Realmo estimates a property’s market value using a proprietary methodology that incorporates public data and user-submitted information. This cumulative value is generated by integrating a variety of conventional and innovative methods. 

    Disclaimer

    These figures are not official appraisals and should not be used as a substitute for a valuation performed by a licensed appraiser.
    Actual market value may differ due to factors not captured in the data. Estimates are offered for informational purposes only, and users should conduct independent research before making financial or investment decisions.
    By using this feature, you acknowledge that Realmo is not responsible for actions taken based on these estimates.

    AI approach

    Realmo AI Method estimates property value using machine learning models trained on millions of comparable listings, transactions, and market signals. It analyzes property features, location intelligence data, and current market dynamics to predict the most probable market value in real time.

    Realmo CapRate Calculation

    Realmo calculates the Capitalization Rate (Cap Rate) to help estimate a property's potential return on investment. The Cap Rate is a fundamental metric in commercial real estate that measures the relationship between a property's net operating income and its market value.

    How We Calculate Cap Rate

    Cap Rate Formula:
    Cap Rate (%) = (Net Operating Income / Property Value) × 100

    Net Operating Income (NOI) Formula:
    NOI = Area × Lease Rate × (1 - Vacancy Rate) × (1 - Operating Expense Ratio)

    Components

    Net Operating Income (NOI) represents the annual income a property generates after operating expenses:

    • Area: Building square footage from property records
    • Lease Rate: Annual $/sqft based on market data for the property type and geographic location
    • Vacancy Rate: Percentage of unoccupied space based on market data for the property type and location
    • Operating Expense Ratio: Operating costs as a percentage of income, varies by property type

    Property Value is derived from:

    • Recent sale price (if available)
    • Statistical models using comparable sales
    • AI-powered valuation estimates

    Example Calculation

    For a 100,000 sqft Office Building:

    • Lease Rate: $25.00/sqft/year (market data for Office in this area)
    • Vacancy Rate: 8% (market data for Office in this area)
    • Operating Expense Ratio: 35% (typical for Office properties)
    • Property Value: $15,000,000

    Step 1: Calculate NOI

    NOI = 100,000 × $25.00 × (1 - 0.08) × (1 - 0.35)
    NOI = 100,000 × $25.00 × 0.92 × 0.65
    NOI = $1,495,000/year

    Step 2: Calculate Cap Rate

    Cap Rate = ($1,495,000 / $15,000,000) × 100
    Cap Rate = 9.97%

    Property Type Considerations

    Net Operating Income calculations vary by property type due to different operating expense ratios:

    • Office: Higher expenses (30-40%) for HVAC, utilities, maintenance
    • Retail: Moderate expenses (25-35%) for common area maintenance
    • Industrial/Warehouse: Lower expenses (15-25%) for minimal tenant services
    • Multifamily: Moderate expenses (35-45%) including property management
    • Self-Storage: Lower expenses (25-35%) due to minimal maintenance

    Market lease rates and vacancy rates are specific to each property type and geographic location, reflecting local market conditions.

    Disclaimer

    These calculations are estimates for informational purposes only and should not be used as a substitute for professional financial analysis or appraisal.

    • Cap Rate calculations depend on market data that may change over time
    • Actual operating expenses, lease rates, and vacancy rates may differ from market averages
    • Individual property conditions, lease terms, and tenant quality significantly impact actual NOI
    • Property value estimates are approximations and not official appraisals
    • Cap rates vary widely by market, property condition, and investment risk profile

    Professional Guidance Recommended: Before making any investment or financial decisions, consult with licensed appraisers, commercial real estate brokers, and financial advisors who can evaluate your specific property and circumstances.
    By using this feature, you acknowledge that Realmo is not responsible for investment decisions or actions taken based on these estimates.

    Cap approach

    Capitalization Method calculates value based on estimated net operating income (NOI) and applying a market-based capitalization rate (cap rate), we estimate what a typical investor might be willing to pay for it.

    Comparable approach

    Comparable estimate is based on recent sales of similar nearby properties, adjusted for factors like size, condition, and location.

    Relative

    Relative property class coefficient uses factors that account for typical price differences between various asset types (e.g., retail vs. industrial) to provide a more accurate market-aligned estimate.

    Geo

    Comparable Sales Method, enhanced by Geo coefficients — location-based adjustment factors that reflect differences in price levels across neighborhoods, cities, or regions ensuring a more accurate, market-sensitive valuation.

    Stat Estimate

    This method estimates value based on actual market adjusted recent (~5 years) sales of comparable properties around by location and property type.

    • Ranges - area data calculated by industry standard IQR Outlier Removal Method
    • Range-from: 75% of all similar sales ($/sqft) are above this value
    • Range-to: 75% of all similar sales ($/sqft) are below this value
    AI Estimate

    This method estimates value based on AI market estimation of comparable properties around by location and property type.

    • Ranges - area data calculated by industry standard IQR Outlier Removal Method
    • Range-from: 75% of all estimations ($/sqft) are above this value
    • Range-to: 75% of all estimations ($/sqft) are below this value
    Alternative use

    Estimate considers the property’s potential value if used for a different purpose-based on zoning, demand, and market feasibility.

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